package FileSystemView;

import java.io.*;



/**
 * @author VIDAMENT-BROU Chad
 * @author WANG Wei
 */

	
public class FileOperate {
		
		/**
		 * construtor
		 */
       public FileOperate() {}
	   
        /**
         * create new  folder
         * @param folderPath String (example c:/fqf)
         * @return boolean
         */
       public void newFolder(String folderPath) {
           try {
               String filePath = folderPath;
               filePath = filePath.toString();
               if(filePath.contains("/")||filePath.contains("\\")){
            	   java.io.File myFilePath = new java.io.File(filePath);
                   if (!myFilePath.exists()) {
                	   myFilePath.getParentFile().mkdirs(); //parent folders
                	   myFilePath.mkdir(); //self folder
                   }
               }else{
            	   java.io.File myFilePath = new java.io.File(filePath);
                   if (!myFilePath.exists()) {
                	   myFilePath.mkdir(); //self folder
                   }
               }
               
           }
           catch (Exception e) {
               System.out.println("create new folder error !");
               e.printStackTrace();
           }
       }
       
        /**
         * create new file
         * @param filePathAndName String (file path and name, example c:/fqf.txt)
         * @param fileContent String (file content)
         * @return boolean
         */
       public void newFile(String filePathAndName, String fileContent) {
           try {
               String filePath = filePathAndName;
               filePath = filePath.toString();
               File myFilePath = new File(filePath);
               if (!myFilePath.exists()) {
            	   myFilePath.createNewFile();
               }
               //FileWriter resultFile = new FileWriter(myFilePath);
               //Will only write content to the end of the file
               FileWriter resultFile = new FileWriter(myFilePath,true); 
               PrintWriter myFile = new PrintWriter(resultFile);
               String strContent = fileContent;
               //myFile.println(strContent);
               myFile.print(strContent);
               resultFile.close();
 
           }
           catch (Exception e) {
               System.out.println("create new file operation error !");
               e.printStackTrace();
           }
       }
       
       
       /**
         * delete file
         * @param filePathAndName String (file path and name, example: c:/fqf.txt)
         * @param fileContent String
         * @return boolean
         */
       public void delFile(String filePathAndName) {
           try {
               String filePath = filePathAndName;
               filePath = filePath.toString();
               java.io.File myDelFile = new java.io.File(filePath);
               myDelFile.delete();
           }
           catch (Exception e) {
               System.out.println("delet file operation error !");
               e.printStackTrace();
           }
       }
       /**
         * delete folder
         * @param filePathAndName String (file path and name, example: c:/fqf.txt)
         * @param fileContent String
         * @return boolean
         */
       public void delFolder(String folderPath) {
           try {
               delAllFile(folderPath); //delete all the files in this path
               String filePath = folderPath;
               filePath = filePath.toString();
               java.io.File myFilePath = new java.io.File(filePath);
               myFilePath.delete(); //delete the empty folder
 
           }
           catch (Exception e) {
               System.out.println("delete folder operation error !");
               e.printStackTrace();
           }
       }
       /**
         * Delete all the files in the folder inside
         * @param path String (file path and name, example: c:/fqf.txt)
         */
       public void delAllFile(String path) {
           File file = new File(path);
           if (!file.exists()) {
               return;
           }
           if (!file.isDirectory()) {
               return;
           }
           String[] tempList = file.list();
           File temp = null;
           for (int i = 0; i < tempList.length; i++) {
               if (path.endsWith(File.separator)) {
                   temp = new File(path + tempList[i]);
               }
               else {
                   temp = new File(path + File.separator + tempList[i]);
               }
               if (temp.isFile()) {
                   temp.delete();
               }
               if (temp.isDirectory()) {
                   delAllFile(path+"/"+ tempList[i]);//1. Delete the folder inside the file
                   delFolder(path+"/"+ tempList[i]);//2. Then delete the empty folder
               }
           }
       }
       /**
         * Copy a single file(que copy une file) 
         * @param oldPath String (The original file path, example：c:/fqf.txt)
         * @param newPath String (After new path 如：f:/fqf.txt)
         * @return boolean
         */
       public void copyFile(String oldPath, String newPath) {
           try {
               int bytesum = 0;
               int byteread = 0;
               File oldfile = new File(oldPath);
               if (oldfile.exists()) { //File exists
                   InputStream inStream = new FileInputStream(oldPath); //Read into the original file
                   FileOutputStream fs = new FileOutputStream(newPath);
                   byte[] buffer = new byte[1444];
                   //int length;
                   while ( (byteread = inStream.read(buffer)) != -1) {
                       bytesum += byteread; //The number of bytes the file size
                       System.out.println(bytesum);
                       fs.write(buffer, 0, byteread);
                   }
                   inStream.close();
               }
           }
           catch (Exception e) {
               System.out.println("Copy a single file operation error !");
               e.printStackTrace();
           }
       }
       /**
         * Copy the entire contents of a folder
         * @param oldPath String (The original file path, example：c:/fqf.txt)
         * @param newPath String (After new path 如：f:/fqf.txt)
         * @return boolean
         */
       public void copyFolder(String oldPath, String newPath) {
           try {
               (new File(newPath)).mkdirs(); //If the folder does not exist, then create a new folder 
               File a=new File(oldPath);
               String[] file=a.list();
               File temp=null;
               for (int i = 0; i < file.length; i++) {
                   if(oldPath.endsWith(File.separator)){
                       temp=new File(oldPath+file[i]);
                   }
                   else{
                       temp=new File(oldPath+File.separator+file[i]);
                   }
                   if(temp.isFile()){
                       FileInputStream input = new FileInputStream(temp);
                       FileOutputStream output = new FileOutputStream(newPath + "/" +
                               (temp.getName()).toString());
                       byte[] b = new byte[1024 * 5];
                       int len;
                       while ( (len = input.read(b)) != -1) {
                           output.write(b, 0, len);
                       }
                       output.flush();
                       output.close();
                       input.close();
                   }
                   if(temp.isDirectory()){//If the sub-folders
                       copyFolder(oldPath+"/"+file[i],newPath+"/"+file[i]);
                   }
               }
           }
           catch (Exception e) {
               System.out.println("Copy the entire contents of a folder operation error !");
               e.printStackTrace();
           }
       }
       /**
         * Move files to specified directory
         * @param oldPath String 如：c:/fqf.txt
         * @param newPath String 如：d:/fqf.txt
         */
       public void moveFile(String oldPath, String newPath) {
           copyFile(oldPath, newPath);
           delFile(oldPath);
       }
       


}
 